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Infant Develp.

Notes on Infant Development--Psychology

QuestionAnswer
What are the current developments of infant development? (1) Connectionism (2) Neuroscience
What is connectionism? Connectionism is a modern theoretical approach, which developed from information proceses and uses computer programs to test models of development.
What are artificial neural networks? These are computer generated networks to study connectionism. They all have: (1) Initial constraints or guides to learning [innate abilities or particular levels of development] (2) Is given an input that represents experiences (3)produces an
What is neuroscience? The human brain and its development Allows researches to link brain development with social, motor language, and cognitive development.
Prosopagnosia A disorder that prevents someone from remembering/recognizing faces no matter how many times they are seen.
What are key issues in infant research? (1) Nature/Nurture debate (2) Stability vs Change (3) Passive or Active Infact
What do science think about infants concerning Nature/Nurture? both aspects are important in the development of infants and they both highly contribute to it.
What are the theories surrounding stability vs. change? This is one of the most discussed subjects when there is a long distance between the ages in which child are observed, things seem more change [discontinuous] When there is little distance, things seem more stable [continuous]
Innoculation theory? The idea that if a baby is treated good early in life, their future will be good. Lewis, Freud, and other theories will early life stages, follow this. This supports stability.
What does today's studies say about stability vs change? The brain is constantly changing. The theory of change supports infant development the most.
naturalistic observation? Observing the everyday, spontaneous behavior of infants, interfering as little as possible Used in baby diaries
Standardized developmental tests Comparing infants progress to the average age when developmental milestones are reached based on large representative samples
Experimental designs? developed to observe infant behavior under controlled conditions
what is a experimental condition? The conditions of the lab that the researcher does not contribute to
What is the controlled condition of an experimental design? the condition in which the researcher controls
In all experimental designs what three aspects must be presents? (1) Validity (2) Reliability (3) Generalizability
What is Validity? Relevance to the proposed question of the experimental Proven through.. (1)alternative research methods to prove same results (2) use of behaviors shown to be relevant in previous work
What is Reliability? refers to whether the same behaviors will be observed in multiple testings Proven through.. (1) second observer is present (2) observers agree on results at <80%
What is Generalizability? What ability to generate knowledge of results to specific context of study [or to infants globally]
True or False: Most senses are functional at birth True
What are methods of determining Sensory Capacities? (5) (1) tracking (2) Habituation (3) High-Amplitude Sucking (4) preference paradigms (5) Conditioned head turning
What is Tracking? One of the earliest signs of vision in infants Tests the visual integrity--tracks the babies ability to look at things of interest
Neonatal Behavior Assessment Scale A behavior instrument often used to measure tracking ability
Habituation The phenomenon that infants prefer to see novel [new] things rather than familiar things. used to test sensory abilities Occurs through repeated stimulus of same stimuli
High amplitude sucking Interests in something invokes faster sucking Used to see is infants has noticed a difference in objections similar to habituation
What are preference paradigms? The tendency for an infant to view more complex objects than simple ones
Conditioned head turning Conditioning the child to turn its head in anticipation of a reward following a stimulus [such as a sound] Can be used to see if an infant can distinguish between sounds [will turn its head if it can discriminated between C.S and new sound]
what are ways of determining how intelligent a child is? (1) Bayley Scales of Infant Development (2) Rate of habituation
Bayley Scales of Infant Development Test The most widely used standardized test for infant intelligence Presents test items arranged in a developmental sequence in which the responses to items determine intellect Does not provide sufficient evidence of future intelligence
How do we access intelligence with rate of habituation? Higher rates of habituation shows future mental processing of higher capacity. Associated with better scores on Bayley's Test
What are methods of determining memory and learning in infants? (1)Classical Conditioning (2) Contingency [operant] conditioning (3) Expectancy Violation (4) Imitation
What is expectancy violation? when something that the infant did not expect occurs Helps show what an infant knows or expects from a situation
Operant Conditioning? Conditioning of two actions trough rewarding and/or punishing
What is imitation? Imitation shows what infants regard as interesting or important behavior as well as their ability to perceive and process similarities between their own actions and those of others.
Delayed imitation imitation that only occurs several days or weeks after observing the action. these studies focus on the memory of infants and how long they can remember events
Reactivation Simply reminders to cue a memory
Reinstatement opportunity to briefly rehearse the contingent response Allows infants to maintain information learned
Still Face procedure Designed to see how infants respond when their expectation of reciprocal behavior with mothers is violated Infants typically turn away and possibly becomes distressed
Desynchronized interaction Mothers interacting through someone disconnected physically like a video with an infant infants typically notice this disconnection and get distressed
strange situation attachment test observes the security and attachment of a child of 6 months with his/her mothers after she can left him/her with a strange alone The study of the reunion is most important
Social referencing When a child refers to the mother/guardian for information upon a strange situation or object Visual cliff-- if mother is happy confident about baby crossing, they more likely will than if mother looks unsure
Joint attention Obtained 6-12months of infancy The ability to coordinate attention with a social partner examples are...following a head turn, eye gaze infants often follow gaze more than not
What is reactivity? In terms of stress in infants? Refers to the initial behavioral or physiological response to a stress event
What is regulation? In terms of stress in infants? Refers to the time that it takes the response to return to pre-stress levels
What are the four types of babies Lewis created in terms of handling stress? (1) cry babies [low reactivity, long regulation] (2) stoics [high reactivity, short regulation] (3) high reactors [high reactivity, long regulators] (4)low reactors [low reactivity, short regulation]
Infant Behavior Questionnaire Designed to measure six dimensions of temperament in infants <1year.
How are infant temperaments assessed? (1) parent reports (2) observational methods
maturation refers to those aspects of development that are primarily under genetic control
What are key issues of prenatal development? (1)Nature/Nurture debate (2) Continuous or discontinuous development (3)The function of fetal behavior
Germinal Period First 2weeks of conception fertizilation--> zygote --> morula --> blastocyst Placenta is established and blastocyst implants into wall of uterus
The Embryonic period 2-9weeks Major organs of embryo is formed. Starts looking human. Most critical stage of development
What are the principles that guide development? (1)Cephalocaudal direction- head to toe. Head is much more developed than toes (2) More basic to more specialized (3) In order of importants [heart is one of the first things to form]
Brain development 18 days into conception One of the slowest to development [many years after birth] Develops from neural crest that rolls into neural tube. [if this doesn't complete, brain may be disfunctional
what are the three main stages of cellular development of the brain? (1) Proliferation (2)migration (3) myelinization/ synaptogensis
Proliferation completed by second trimester The establishment of neurons in the brain
Migration Cells from the progenitor cells in the neural tube wall move to their final location in brain.
Myelinization? The establishment of the myelin sheath on axons of neuron shells into increase synapse communication speed
Synaptogensis Process by which nerve cells communicate with each other and organs
what are some enviromental influences on fetal development? When are they most effective? teratogens are common enviromental influences on the fetus [i.e drinking, malnutrition] They are dependent on both amount and time of exposure. The most crucial period is during organogensis [embryonic period]
Organogensis? The part of emybronic development in which organs are established. Most crucial time for babies
Fetal alcohol syndrome Results from large amounts of alcohol during pregnancy, contributes to physical and mental development in negative ways
Fetal alcohol effects More minor effects of alcohol on fetal development. physically normal but mental problems are apparent
fetal origin hypothesis argues that environmental effects can program the functional capacity of the fetal's organs and health
predictive adaptive response the body of the fetus developing to the environmental effects around it.
Quickening 18-20weeks of conceptions mother feels movements of child.
When do fetuses start to use motor skills? 8weeks
What are the behavior states of pregnancy and when do they start? 36 weeks (1) Quiet Sleep (2) Active Sleep (3) Quiet Awake (4) Active Awake
Quiet sleep Observed 15% at 36 weeks, 32% at 38weeks, and 38% at term Exhibits startles, no eye movement, stable heart rate
Active Sleep 42-48% in term Frequent gross body movements, eye movements, heart rate accelerates with movement. Most common state
Quiet Awake No percentages No gross body movements stable heart rate, wider bandwidth than stage one Rare state
Active Awake 6-7% at 36 to 38 weeks and 9% at 40 weeks continual activity eye movements unstable heart rate, increase pulse rate
Hearing in the womb responds to sound at 22-24weeks Can discriminate between sounds. Responds by moving to sounds. High frequency does not reach fetus, only low frequencies like voices and music
Chemosensation in womb Smell and taste in womb. Can discriminate sweet/sour. Swallows fluid at 12 weeks.
Pain in the womb Neural pathways develop around 24-26 weeks. It is uncertain if fetuses feel pain.
Temperature in the womb Little variation. temperature is regulated in womb to be constant
Touch First to develop-- 8 weeks 8-9weeks, turns away from touch. Second trimester- turns towards touch 14weeks, body is responsive to touch. Touches self at 13weeks
Vision Slowest and last to develop. Response in heart rate at 26weeks if light is flashed on abdomen.
Habituation in womb 22-24 weeks Fetus will respond less to a sound is repeated
exposure learning babies are able to recognize their mother's voice before birth due to exposure learning determined to sucking amplitude testing
What are some reasons discussed for fetal behavior movements? [5] (1) Practicing for life outside womb (2) Ontogenetic adaptations (3)Recognition of mother (4) breast feeding (5) developing physical and mental forms
fetal breathing movements Observed 9-10weeks Practicing for breathing outside womb
Ontogenetic adaptations adaptions to its life in the womb
Braxton Hicks Contractions Fake contractions that occur during pregnancy to help prepare the uterus for delivery by developing muscle tone
What is the first stage of birth? Longest stage begins with contractions every 15-20minutes Moving baby towards the birth canal. Last 8-24hour.
What is the second stage of birth? established after baby head is through rest of baby is pushed through with contractions Only cord and placenta is left
what is the third stage of birth? contractions expel placenta
significance of develop of eye-head control provides infants with opportunities to learn about events and the location of objects and surfaces
Significance of Manual skills invites a new world of learning about objects and surfaces allows infants to brings objects to them and explore their properties
significance of dependent and independent locomotion skills allows infant to learn about places and the objects and surfaces that populate various locations
What are the hallmarks of psychological development Looking, reaching, and walking
Motor skills promotes what four things? (1)Agency [knowledge of self who can effect the environment] (2) prospectivity [gearing actions to the future] (3) behavioral flexibility [adapting behaviors to variable and novel circumstances] (4) means-ends problem solving [achieving goals]
Smooth pursuit the ability to track an object with eyes and head simultaneously. part of eye-head movement improves with practice
Describe infant ability lift head 2-3weeks, lift chins for short period of time 5-10wks lift head and chest
Relationship between crawling and eye-head control more experience with crawling showed higher tracking ability
Manual skills Reaching becomes progressively smoother and straighter in 31weeks of age. at 31 weeks, reaching is adult level Infants with more developed skills look differentially at displays of single and multiple objects
Locomotion 6months- rolling over 8months-- crawling 7-13months--cruising 11-15months--walking Locomotion is experience dependent
What are some consequences of balance and locomotion experience? (1) new source of information about self [Moving room] (2)Increased behavior flexibility [visual cliff] (3)Discovering new ways of achieving goals
Infants with more experience of a certain locomotion skill are likely to judge distance more accurate True
Empiricist view View of perceptual development that infants perceive very poorly initially and only experience develops it
Nativist view Perceptual view that development of the senses is according to a timetable set out by genes
Touch First to develop in womb and most developed at birth Develops 8 weeks. Can discriminate textures and sizes of objects
Temperature Infants can differentiate cold from warm objects
Pain neural pathways developed 26weeks theories that it develops with age
Taste 3months--open to exploring all foods 2year--start to develops hates for foods Can be intrinsic [hunger] or extrinsic [cultured food times]
Smell from 9-10 weeks of breathing prenatally, infants experience smell They can differentiate smells and discriminate between them. Expressed through facial expression
Hearing Responds to sounds prenatally at 22-24 weeks. They can localize [determine the source of] sounds have auditory preferences for mother Infants are born with the ability to discriminate between all speech sounds in the world
Native Listener When babies becomes specialized in a language, losing its ability to discriminate between all sounds
Vision Least developed acuity is 10-30 times poorer than that of an adult--equivalent to a cat reaches adult ability 6months, and full adult about 3years
Visual acuity The ability for a baby to discriminate details Tested in babies in equivalency to adult vision
visual accommodation ability to focus on objects at different distances present at birth
visual cliff used to develop depth perceptions fake cliff infant is encouraged to crawl across
binocular vision refers to the fact that we have two eyes and because they are separated only slightly,our brains accommodate them so they are seeing one picture comes in 3-4months, not at birth
size constancy size constantly refers to the fact we perceive an object as being the same at difference distances present at birth
Perceptual narrowing effect Similar to native listening, around 9months, infants began to special to human faces. only being able to discriminate human faces, not monkey faces
Object perception 5-6months begin to understand objects touching are two 6-8months learn about gravity and falling properties of objects develops with experience
Kinesthetic feedback feedback from the nerves throughout our bodies telling us where our body body parts are
vestibular system semi circular canals in inner ears that control the sense of bodily posture and balance
Infant reaching develops how? stable control over head--looking--reaching
How does the moving room relate the balance and posture? Moving the room forward makes those infants with posture experience, adjust their bodies to maintain balance [although they don't need to]
infantile synesthesia suggested by William James. referring to infants inability to distinguish between senses proven not to be true
intersensory redundancy information between two sensory sources that is similar or linking information this enhances an infants learning speed about an object
Cognition a term referring to the mental abilities--thinking, memory, problem solving, categorization, reasoning, language development, and so on.
What are the four approaches to accessing infant learning development? (1) Piagetian approach (2) Nativist Approach (3) information processing approach (4) psychometric approach
What are Piaget's six stages to the sensorimotor period? (1) Modification of reflexes (2) primarily circular reactions (3) Secondary circular reactions (4) coordination of secondary schemes (5) tertiary circular reactions (6) the beginnings of thought-mental representations
objectification the knowledge of the shelf and external objects as distinct and separate entities Piagetian's Approach tries to explain this
Stage 1: Modification of reflexes [1 months] Infant engages in repetitive reflexes to stimuli. In times modifies them to specific objects
Stage 2: Primarily Circular Reactions [1-4months] a scheme that is repeated simply because it is interesting in and of itself
Stage 3: Secondary Circular Reactions [4-8months] Discovering procedures for making interesting events last Repeating an object for the sake of producing an event, not for pleasure.
Stage 4: Coordination of Secondary Schemes Secondary circular reactions become coordinated and intentional A goal [means-end] is to be achieved now
Stage 5: Tertiary circular reactions [12-18months] Child begins to produce behaviors that signal novelty and exploration deliberate trial and error procedures to explore objects
Stage 6: Beginning of thought--mental representations [18-24months] invents new means via mental representation [trying out different combinations of actions mentally and anticipating the consequences without necessarily engaging in overt behaviors
visual accommodation to rapid movements when infants respond to a fallen object by looking at the ground
interrupted prehension infants attempt to retrieve a fallen object
Deffered circular reaction child's gestures when object-orientated play activity is disrupted, resuming after delay
reconstruction of a visible whole from a visible fraction when a child retrieves an object that is only partly hidden
removal of obstacles preventing perception removing something covering an object [blanket or hand]
A-not-B Error Tendency for child to search in objects previously hidden location despite observing it being in a new location persists until 12months
allocentric system the ability for an infant to judge spatial organization with reference to the external world
How is a younger infant likely to respond to spatial organization? Egocentrically, in respects to own body. Incorrectly
Nativist approach to Knowledge Theory that a limited number of early emerging kinds of knowledge form a central core around which diverse, mature cognitive capacities are later elaborated That knowledge is innate
Innate Object Knowledge (1)evidence of object knowledge can be observed in very young infants (2) infants detection of apparent violations of physical constraints has been proposed to arise from experience Most doubt this theory due to lack of evidence
Rod Test 4 months responded successfully to completely perception Newborns did not under some conditions 2 months perceived correctly
All evidence indicates that perceptions of occulusion is present in humans at birth and with it, objects as a while is present False: all evidence suggests the opposite in all aspects
imitation age development 8-10 months it emerges 18-24months deffered imitations emerges 9months- imitations of novel actions emerges
What are the processes of imitation? Active intermodel matching: (1) proprioceptive feedback
Proprioceptive feedback Information about the movement of its own unseen facial movements and match this to its own imitative behavior
Constructivist Account Argument that knowledge was constructed from infant experience and actions on the world Piagetian's Approach is based on this
Information-Processing account theory that knowledge is constructed from the function of more primitive mechanisms over time, and learning. (1) sensory (2) perceptual (3)cognitive processes [visual perception, memory, attention, and categorization] experiments generally support
Psychometric Approach Attempts to measure various aspects of individuals to understand how development takes place, and also to compare the development of individuals with those of a comparable group of people--measure of individual differences
What are the environmental influences on development of knowledge? Unless there is extreme deprivations, mental development in infancy follows a genetically predetermined, species typical growth path [creod] it is claimed that intervention programs for such cases are not needed under 1 year of age.
Object permanence Understanding that an object that isn't insight still exists 6months don't have it, but 8months do
What are some expectancy violation tests involving object permanence (1) trucking rolling down slide 4-months and 6-8months responded correctly (2) Draw bridge study 5-months responded correctly
Support relationships infants determining what can and cannot hold them from experiments of exploring them
What are some of the nativist arguments concerning object permanence (1) infants use core knowledge to reason about the events they encounter [continuous/discontinuous experiment]
What are some theories about why some infants can understand object permanence, but fail to express it unless through expectancy violation? (1) memory limitations [unlikely due to instantaneous actions] (2)response perseveration [automatically repeating a response] unlikely due to lack of correction (3) Different levels of knowledge [most likely]
Peek-a-boo paradigm A way to access spatial orientation in infants [turning the right direction to view something from a certain angle] 4-8months seem to succeed at this linked with crawling, spatial abilities increase with more experienced crawlers
Visual cliff results to depth 6-14months generally will not crawl across deep end
weariness testing Lowering 5months to the deep end causes awareness [lower heart accelerations] lowering 9-months increases heart rate [wariness] Crawling experiences increases weariness
What does size constancy show about 3-d perception The fact that most infants have size constancy, shows the infants do perceive 3-D world
What is the significance of creating a memory for infants? It enables infants to develop more complex representations of stimuli that they repeatedly encounter Also helps them learn to respond to these stimuli too
childhood amnesia The inability to recall childhood memories
What are some theorized reasons for childhood amnesia (1)Repression theory (2) Inability to distinct the self (3) Language development
How is language development associated with memory? Young children are unable to verbally recall memories recorded before they shift from being non-verbal to verbal [demonstrated through magical shrinking box] The way parents talk to their children about the past influences memory
Infantile Amnesia Universal through species, rapidly forgetting during infancy
What are three methods used for memory testing? (1) habituation and subsequent preferences for novel stimuli (2) operant conditioning (3) deffered imitation
Visual paired comparisons An example of recognition memory testing habituation to seen images
When is forgetting inferred? When the mean number of actions produced by the demonstration group is not significantly greater than the mean number of actions produced by the control groups
Recall Memory A form of long term memory that retrieves information without the assistance of clues [deffered imitations]
Recognition Another type of long term memory inwhich information is retrieved with the assistance of cues [visual paired comparisons]
How long are events remembered for in infancy? Retention 2-months one day 9-months 6 weeks 18-months 13 weeks
What do verbal accounts for memory in children show about their affinity to detail? Young children have a more specific than generalized memory
What are the conclusions about the maturation of brain structures? The connections in the brain linked to memory are rather mature at birth but there's no evidence that they are functionally mature.
What are some reasons retention in experimental studies are short? (1) stimuli in real life situations are offered from a multi-modality point, rather than the unimodality of a lab setting (2) More variability in environment for real life settings, rather than lab settings
What are the two types of long term memory? (1) Declarative [memory on events and environment] (2) Procedural [memory for habits and skills]
predeclarative memory Charles Nelson's theory that declarative memory exists in a premature form for infants. Hinting at why infants don't recall things in association with it
What are some theories of why faces are of interest in infants? (1) because they possess high contrasts, dynamics and are top heavily [stimulating to the infant eye] (2) Innate face detecting brain mechanisms or born with innate representation of faces
Whats the difference in the way 1 months and 2 months scan faces? 1 months scan from the chin to hair lines to inner feature--moistly focusing on out extremities 2 months focused generally internal features of face, hardly focusing on external extremities
Around four months what brain hemisphere and visual field does the infant use more? What is it beforehand? At 4 months, infants specialized in left visual, right hemisphere for face processing. Before it, it alternated and/or used both.
Facial prototype A face that an infant may create after seeing so many faces to represent what a face should look like
What is temperament? Enduring set of characteristics that determines how an individual reacts and behaves
What are the three characteristics of temperament? (1)Genetically based (2)Independent of social experience, cognitive ability, or learning (3) Temperament interacts with later family and other environmental experiences to influence behavior across situations
What are the nine dimensions of temperament? (1) Activity level (2)rhythmicity (3)adaptability (4)approach-withdrawal (5) mood (6)intensity (7)attention-span persistence (8) distractibility (9) threshold of responsiveness
What are the three types of temperament? (1) easy (2) slow to warm up (3) difficult
Easy baby 40% of babies Positive emotions, cheerful Adapt well to novelty, new situations Reactions of low to moderate intensity
Slow to warm up baby 15% of babies Negative emotions Slow adjustments to novelty, new situations Low activity level, reactions of moderate intensity
Difficult baby 10% of babies Negative emotions Slow adjustments to novelty, new situations Reactions of high intensity
What was Thomas/Chess theory on temperament? Temperament is innate and develops into personality over time
What are Mary Rothbarf's three factors of temperament? (1)Surgency/extraverison (2)Negative affectivity (3) Orientating and regulation
Surgency/Extraverison Approach High intensity pleasure Frequent smiling and laughter High activity level Perceptual sensitivity
Negative affectivity Sadness Distress to limitations (confinement; actions) Fear Slow to recover from distress; Slow to fall asleep
Orienting and regulation Low intensity pleasure Cuddliness/affiliation Duration of Orienting Soothability (Relief of negative emotions through cuddling and soothing)
In what ways is temperament measured? (1) Parent reports (2)laboratory observation (3)Physiological assessment in novel situations
How does temperament predict personality? (1) relates to internalizing and externalizing behaviors (2) is not a long term predictor
What are some environmental influences on temperament? (1) gender bias assumptions on temperament (2) Culture influences: Individualistic or Collective
Functionalist approach to emotions in infants Emotions as central, adaptive forces in all human activities; help us deal with fundamental life tasks
Primary/Basic emotions Developed within 6months or innate Easy for adults to interpret Has survival value
What are some of the early emotions present at birth? [3] (1) distress (2) pleasure (3)Interest
What are some of the emotions present in 3 months? [3] (1)Joy (2)Sadness (3) disgust
What is the emotion present at 4-6months? Anger
What is the emotion present at 6-8months? Fear
When is conscious developed and what is its significance? Developed around 18 months Introduces infant to 'self' leading to other emotions such as jealously and embarrassment
What emotions were discussed that consciousness opens up? [6] (1) jealously (2) embarrassment (3) Pride (4) Hubris (5) shame (6) guilt
Secondary emotions Emerge during the second and third years of life from advances in cognitive abilities, mental representation
Empathy Involves ability to put yourself in the role of another; If I know I am likely to feel unease in that situation, I assume you are also likely to feel unease
Jealousy Wanting for yourself what someone else has
Exposure embarrassment results from compliments, being looked at, and from being pointed to; No negative evaluation
Self-Conscious Evaluative Emotions Emotions that require self-evaluation with a set of standards, rules, and goals to determine success or failure
What are the two types of self conscious evaluative emotions? (1) external evaluation [blame the situations, not self] (2) Internal attribution [blaming personality or self]
What are the two factors of Internal attribution? (1) Global attribution: Blaming whole self, personality (2) Specific attribution [snapshot blaming. "In the moment blame]
Hubris Exaggerated self-confidence global attribution for success
Pride Joy after success due to an action, thought, or feeling Specific attribution for success
Evaluative Embarrassment Failures associated with less important and less central standards, rules, and goals result in embarrassment rather than shame
Emotional contagion Feeling or acting in the same manner as another based on the emotions they are experiencing
Social referencing respond to emotional cues of parents, other adults
Emotional Regulation Internal, external process through which emotions are monitored, appraised, and modified to achieve goals
What constitutes self regulation? (1) Behaviors to be used during emotional arousal (2) Use of internal skills such as memory, language (3) External support from caregivers
When is interest in faces influenced by the fact that it is a social stimulus? 3-12months
When it comes to mother and father faces, how is face preference applied in infants? (1) 2-day-old infants prefer to look at mother and preference strengthens with exposure and develops after only 4-5.5 hours of viewing her face (2) Even four-month-olds do not show preference for father’s face, but may show more affective responsivenes
When an an infant recognize a familiar face? 2-3months need less exposure time as they mature
Configural Face information Spacing or relations among features, such as distance between eyes and nose Infants rely on this more than features
Lateralization Right hemisphere specialization for face processing
Prosopagnosia face blindedness
What are some experience influences on facial preferences (1) Novel face that matches gender of primary caregiver (2)Attractive faces, especially females faces (3)Prototypes = Attractiveness
What is termed at attractive for babies? Average looking people or symmetrical features, smoother skin, more defined contrasts, slimmer faces..etc
Beauty is good stereotype Adults and children assign positive traits to attractive people, and negative traits to unattractive people 6-months habituated to an attracted trait was tested at 12 months and related positive traits to attractive faces
How to infants perceive emotions? 1-2 days old: can discriminate and imitate live models of happy, sad, and surprised expressions 3 months: Discriminate between pictures of different facial expressions Females better than males
How do infants categorize emotions? Infants younger than 10 months do not group positive (happy, surprise) and negative (angry, fearful) expressions, but categorize by specific facial expression (happy faces)
What is the significance of eye gazing in emotional interpretation? 2-3 months: Look more at the eyes when an adult is talking Perceives eyes as socially meaningful and encourages social bond
What happens when gaze with an infant is broken? Infant smiles less, may attempt to gather attention again, but ultimately gives up or becomes distressed
Created by: agrandis
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